Full-vectorial FDTD method for the dispersion characterization of nonlinear PhC fibers

摘要

In the work, we have presented the technique based on the FDTD method for the dispersion computation of a single-mode fiber with an arbitrary refractive index profile. In contrast to other numerical methods the FDTD allows studying the beam propagation along the fiber taking into account material dispersion and the nonlinearity. Particularly, we have concentrated attention on the method details that allowed us to reduce dramatically the computation time and achieve the accuracy close to the one provided by the finite elements method